Rain Gardens

Rain Garden - Characteristics - Soil and Drainage
... A five year USGS study indicates that rain gardens in urban clay soils can be effective without the use of underdrains or replacement of native soils with ... with a series of gravel layers near the lowest spot in the rain garden will help facilitate percolation ... placed at the lowest spot can become clogged with silt prematurely turning the garden into an infiltration basin defeating its purpose ...

Rain Garden - History
... The first rain gardens were created to mimic the natural water retention areas that occurred naturally before development of an area ... The rain gardens for residential use were developed in 1990 in Prince George's County, Maryland, when Dick Brinker, a developer building a new housing subdivision had the idea to replace the traditional best ... The result was the extensive use of rain gardens in Somerset, a residential subdivision which has a 300–400 sq ft (28–37 m2) rain garden on each house’s property ...

Rain Garden Projects - Australia
... The program encourages people to build rain gardens at home, and its target is to see 10,000 rain gardens built across Melbourne by 2013 ... including 57 case studies relating to rain gardens/bioretention systems ... the uptake of Water Sensitive Urban Design, including rain gardens, in South East Queensland ...

Rain Garden Projects - United States of America
... work and scientific documentation on the range of pollutants which can be controlled using rain gardens ... A twin chamber rain garden has been built to capture runoff from a 120 space car parking lot and adjoining buildings on the College of Wooster campus ... on the program, is a noted environmental engineer and co-designer and developer of rain gardens ...